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Not yet, at least not in the same form factor. The major reason is that by simply sourcing 100w (the most powerful) variant, it gives buyer choices to run it at lower power settings without having to deal with too many product lineups (which I cannot financially deal with as of now). Also, once overheads (such as shipping costs) are taken into the equation, the lesser variants don’t get that much cheaper.

Aside from some tint shifts (that is can potentially be a negative thing), underdriving a more powerful LEDs will result in better efficiency and longer lifespan. As far as voltages are concerned, all variants in this form factor (except the AC ones) are to be run at the same voltage. All you need to do is to pair it with a less powerful drivers or just feed it with less current.